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Posted to notifications@dubbo.apache.org by GitBox <gi...@apache.org> on 2021/10/17 14:19:15 UTC

[GitHub] [dubbo] ptxl opened a new issue #9051: use nacos as registry centors，provider service can't start

ptxl opened a new issue #9051:
URL: https://github.com/apache/dubbo/issues/9051


   **the main error info is as follow, do anybody help me thanks in advance**
    registry=org.apache.dubbo.registry.integration.RegistryProtocol:
   java.lang.IllegalStateException: Failed to load extension class (interface: interface org.apache.dubbo.rpc.Protocol, class line: registry=org.apache.dubbo.registry.integration.RegistryProtocol) in jar:file:/D:/data/.m2/repo/org/apache/dubbo/dubbo-registry-api/2.7.7/dubbo-registry-api-2.7.7.jar!/META-INF/dubbo/internal/org.apache.dubbo.rpc.Protocol, cause: Duplicate extension org.apache.dubbo.rpc.Protocol name registry on org.apache.dubbo.registry.integration.InterfaceCompatibleRegistryProtocol and org.apache.dubbo.registry.integration.RegistryProtocol
   java.lang.IllegalStateException: Failed to load extension class (interface: interface org.apache.dubbo.rpc.Protocol, class line: registry=org.apache.dubbo.registry.integration.RegistryProtocol) in jar:file:/D:/data/.m2/repo/org/apache/dubbo/dubbo-registry-api/2.7.7/dubbo-registry-api-2.7.7.jar!/META-INF/dubbo/internal/org.apache.dubbo.rpc.Protocol, cause: Duplicate extension org.apache.dubbo.rpc.Protocol name registry on org.apache.dubbo.registry.integration.InterfaceCompatibleRegistryProtocol and org.apache.dubbo.registry.integration.RegistryProtocol
   	at org.apache.dubbo.common.extension.ExtensionLoader.loadResource(ExtensionLoader.java:901)
   
   
   
   pom.xml file
   ![image](https://user-images.githubusercontent.com/12063911/137631338-cd3fd76a-6291-40c1-96f6-c59eaf0a2049.png)
   
   
   provider.xml
   ![image](https://user-images.githubusercontent.com/12063911/137631378-d025bad3-da4d-44c4-b936-cb50f984c2f2.png)
   


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[GitHub] [dubbo] ptxl commented on issue #9051: use nacos as registry centors，provider service can't start

Posted by GitBox <gi...@apache.org>.
ptxl commented on issue #9051:
URL: https://github.com/apache/dubbo/issues/9051#issuecomment-946624685


   > 看异常提示意思是SPI重复，你看看是引入jar包的SPI重复，还是你定义了重复的SPI。 方案： 1、如果是引入jar包的SPI重复，你尝试用maven排除重复SPI的jar包。 2、如果是自己定义的SPI，则删除你定义的SPI。
   > 
   > 可以尝试一下这两种方法排除问题。
   
   第二种排除，因为我没自己实现
   第一种尴尬的是不能排除jar报，一个是dubbo-registry-nacos依赖的jar dubbo-registry-api，另外一个是dubbo自带的spi实现


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[GitHub] [dubbo] neighbor-uncleWang commented on issue #9051: use nacos as registry centors，provider service can't start

Posted by GitBox <gi...@apache.org>.
neighbor-uncleWang commented on issue #9051:
URL: https://github.com/apache/dubbo/issues/9051#issuecomment-945540614


   看异常提示意思是SPI重复，你看看是引入jar包的SPI重复，还是你定义了重复的SPI。
   方案：
   1、如果是引入jar包的SPI重复，你尝试用maven排除重复SPI的jar包。
    2、如果是自己定义的SPI，则删除你定义的SPI。
   
   可以尝试一下这两种方法排除问题。


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[GitHub] [dubbo] ptxl closed issue #9051: use nacos as registry centors，provider service can't start

Posted by GitBox <gi...@apache.org>.
ptxl closed issue #9051:
URL: https://github.com/apache/dubbo/issues/9051


   


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[GitHub] [dubbo] ptxl commented on issue #9051: use nacos as registry centors，provider service can't start

Posted by GitBox <gi...@apache.org>.
ptxl commented on issue #9051:
URL: https://github.com/apache/dubbo/issues/9051#issuecomment-946622502


   > 看异常提示意思是SPI重复，你看看是引入jar包的SPI重复，还是你定义了重复的SPI。 方案： 1、如果是引入jar包的SPI重复，你尝试用maven排除重复SPI的jar包。 2、如果是自己定义的SPI，则删除你定义的SPI。
   > 
   > 可以尝试一下这两种方法排除问题。
   
   是spi重复，但是是根据官网的教程添加的依赖，为什么添加nacos相关的jar就报spi重复，我使用zookeeper是没问题的，排除的话无法排除啊，一个是dubbo自生带的spi实现一个是dubbo-registry-api，无法排除啊，名字都叫registry，这个是不是一个bug


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[GitHub] [dubbo] ptxl commented on issue #9051: use nacos as registry centors，provider service can't start

Posted by GitBox <gi...@apache.org>.
ptxl commented on issue #9051:
URL: https://github.com/apache/dubbo/issues/9051#issuecomment-946633047


   > 看异常提示意思是SPI重复，你看看是引入jar包的SPI重复，还是你定义了重复的SPI。 方案： 1、如果是引入jar包的SPI重复，你尝试用maven排除重复SPI的jar包。 2、如果是自己定义的SPI，则删除你定义的SPI。
   > 
   > 可以尝试一下这两种方法排除问题。
   
   ![image](https://user-images.githubusercontent.com/12063911/137901087-248443ca-37c0-4a08-a60d-c8eb0898ce9d.png)
   我这样配置排除了，居然可以，这个官网的教程真是误人子弟


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